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Finding the Fourth Proportional to 479,273.72, 661,393.20 and 264,415.56

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Solution

The fourth proportional to 479,273.72, 661,393.20 and 264,415.56 is: 364,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,273.72 : 661,393.20 = 264,415.56 : x
  2. Step 2: Convert to fraction form
    479,273.72/661,393.20 = 264,415.56/x
  3. Step 3: Cross multiply
    479,273.72x = 661,393.20 × 264,415.56
  4. Step 4: Simplify right side
    479,273.72x = 174,882,653,358.19
  5. Step 5: Solve for x
    x = 174,882,653,358.19/479,273.72
  6. Step 6: Final answer
    x = 364,890.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.